Bailer bottom



I proved bailer.

Patented Apr. 22, 1924.

UNITED STATES ALEXANDER BOYNTON, 6] SAN ANTONIO, TEXAS.

BAILER BOTTOM.

Application filed Kay 8, 1922. Serial No. 559,365.

To all whom it may concern:

Be it known that I, ALEXANDER BOYNTON, a citizen of the United States, and resident of San Antonio, in the county of Bexar and State of Texas, have invented certain new and useful Improvements in Bailer Bottoms, of which the following is a specification.

This invention relates to bailer bottoms especially adapted for use in bailing oil and other wells.

An important object of this invention is to provide a bailer which automatically opens when set down on the derrick sill so as to allow the collected mud and sludge to readily discharge and which also opens when the bailerreaches the bottom so it will receive the mud and sludge to be withdrawn. I

A further object is to provide a bailer having its lower end formed with mud and slud e receiving means whereby the downwar thrust of the bailer is employed to drive the mud and sludge into the bailer.

A bailer constructed in accordance with this invention is formedwith large inlet and outlet means so that the mud and sludge may readily enter the bailer and discharge itself therefrom.

Also a further object is to provide a bailer which is more or less smooth on its exterior so that it will not hang, stick or become locked or pinioned against casing or liner by gravel or slivers going into or coming out of the well.

Also an important object of this invention is to provide a bailer having two rotatably connected valves arranged in superposed relation and having means whereby the wear resulting from the presence of sand grit mag be compensated for.

' further object is to provide a bailer which is extremely durable, reliable in use and comparatively cheap to manufacture.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawings forming a part of this application and in which like numerals are employed to designate like parts throughout the same,

Y Figure 1 is a side elevation of the Figure 2 is a central vertical sectional view through the same.

the connectin Figure 3 is a side elevation of an outer sleeve 'partly in section. v

Figure'4 is a horizontal section on line 4.4 of Figure 2.

In the drawing wherein for the purpose of illustration is shown a preferred embodiment of the invention the numeral 5 designates an inner sleeve which as'illustrated in Fig. 2 is substantially longer than the outer sleeve 6 which encircles the lower portion of the inner sleeve.

The outer sleeve 6 is slidably connected to the inner sleeve by means of a trans: verse pin 8 anchored to the intermediate portion of the sleeve 5 and having its end portions arranged in longitudinally extending slots 9 in theouter sleeve. The sliding connection between the inner and outer sleeves is enclosed by a tubular cover 11 having its forward portion threaded onto the intermediate portlon of the outer sleeve as indicated at 12. It will be seen that mud is efi'ectively excluded from the oppositely arranged slots 9 by the cover 11 which, of course, is movable with the outer sleeve.

In carrying out the invention a relatively stationary valve 14 is held within the forward portion of the outer sleeve by a retaining bushing 16, the latter being threaded into the outer sleeve as indicated at 17. The stationary valve 14 is in the nature of a spider and has its upper side firmly in contact with an internal annular shoulder 18 formed on the outer sleeve. The valve 14 is also held against rotation by a set screw threaded thru the outer sleeve. It is thus apparent that the spider or valve 14 is held against movement longitudinally of the outer sleeve and is also held against rotation.

The relatively stationary valve 14 is connected with a similarly constructed valve 20 through the medium of a screw bolt or cap screw 22 and a nut 23 in such manner that the valve 20 may rotate relative to the valve 14. Further the connection between the valves allows wear as a result-of the presence of sand and grit to be compensated for without taking the device apart or much labor on the part of the attendant. Attention is also directed to the fact that members 22, and 23 do not extend beyon the sides of the hubs of the valves and therefore do not in any way interfere with the free passage of mud clther while filling the bailer or discharging mud therefrom. The 0 nings in the upper and lower valves, whi e somewhat less in area.

than the cross sectional area of the bailer, are largeenough to permit of the rapid .filling of the bailer and the discharge of inner sleeve at a point spaced between the ends of the same. With reference to Fig. 2 it will be observed that the exterior of the intermediate sleeve is flush with the exterior of the inner sleeve above the shoulder 26. The lower ortion of the inner sleeve is reduced exteriorly to define the annular shoulder 26. i

The intermediate sleeve is formed with a pin 27 received within a spiral slot 28 in the inner sleeve and when the valves 14 and 20 are in registration as illustrated in Fig. 2, the pin 27 is in the upper portion of the slot 28. However, when the bailer is extended and the valves are out of registration or closed the pin 27 is received in the lower portion of the slot 28.

In operation the improved bailer is lowered into the well and upon encountering mud the inner sleeve will advance with relation to the outer sleeve whereby the valves 14 and 20 will be brought into registration for allowing the mud to enter. It is thus seen that the valves 14 and 20 are brought into registration simultaneously with the engagement of the bailer with the mud so that the weight of the bailer is utilized for forcing the mud into the bailer. When the bailer is filled with mud itis withdrawn and .as a rearward pull is exerted on the inner with the setting of the device on the sill so that the rapid and efiicient discharge of the mud and sludge isprovided for.

In carrying out the invention the guide pin 8 is positively held in position by the mud excluding cover or tubular member 11 and the pin is made stout enough to prevent shearing. In view of this the accidental disconnection of any of the parts of the bailer while in the well is rendered extremely unlikely. The pin 8 forms a reliable means for foreign matter.

It is to be understood that the form of the invention herewith shown and described is to be taken merely as a preferred example of the same and that such minor changes in arrangement and construction of parts may be made as will remain within the spirit of the invention and the scope of what is claimed.

Having thus described the invention, what I claim is 1. A bailer for wells comprising inner and outer sleeves, means slidably and non-rotatably connecting the sleeves, a relatively stationary valve carried by the outer sleeve, and a second valve cooperating with said first named valve in controlling the supply of mud and sludge to and the discharge of mud and sludge from the bailer.

,2. A bailer for wells comprising inner and outer sleeves,.means slidably and non-rotatably connecting the sleeves, a relatively stationary valve carried b the outer sleeve, 8 second valve cooperating with said first named valve in controlling the supply 01 mud and sludge to and the discharge of mud and sludge from the bailer, and an intermediate sleeve arranged between the inner and outer sleeves and having rigid connection with said second named valve.

3. A bailer for wells comprising inner and outer sleeves, means slidably and non-rotat ably connecting the sleeves, a relatively stationary valve carried by the outer sleeve, a second valve cooperating with said first named valve in controllmg the supply of mud to and the discharge of mud from the bailer, an intermediate sleeve arranged between the inner and outer sleeves and having rigid connection with said second named valve, and means rotatably connecting said first and second named valves.

4. A bailer for wells comprising inner and outer sleeves, means slidably and non-rotatably connecting the sleeves, a relatively stationary valve carried by the outer sleeve, a second valve cooperatm with said first named valve in controllmg the supply of mud to and the discharge of mud from the bailer, anintermediate sleeve arranged between the inner and outer sleeves and havin rigid connection with said second named valve, and means rotatably connecting said first and second named valves, there being a pin and spiral slot connection between the inner sleeve and the intermediate sleeve.

5. A bailer for wells comprising an inner sleeve, an outer sleeve having slots, 3. pin extending through the inner sleeve and received in said slots whereby to limit the movement of the outer sleeve with relation to the inner sleeve, a mud excluding tubular member surrounding the outer sleeve and closing said slot and constituting a. means to hold the pin in position, an intermediate sleeve arranged between the inner and outer sleeves, coacting valves carried by said intermediate sleeve and said outer sleeve, there being a pin and spiral slot connection between the inner sleeve and the intermediate sleeve for rotating one of the valves when one of the sleeves is moved longitudinally with relation to the other.

6. A bailer for wells comprising an inner sleeve, an outer sleeve having slots, a pin extending through the inner sleeve and received in said slots whereby to limit the movement of the outer sleeve with relation to the inner sleeve, a mud excluding tubular member surrounding the outer sleeve and closing said slots and constituting a means to hold the pin in position, an intermediate sleeve arranged between the inner and outer sleeves, coacting valves carried by said intermediate sleeve and said outer sleeve, there being a pin and spiral slot connection between the inner sleeve and the intermediate sleeve for rotating one of the valves when one- 7. A bailer for wells comprising inner and outer sleeves, the inner sleeve being extended a substantial distance beyond the rear end of the outer sleeve, means slidably connecting the inner and outer sleeves, the forward portion of the inner sleeve being reduced exteriorly whereby to provide an annular shoulder, an intermediate sleeve contacting with said shoulder and surrounding the reduced portion of said inner sleeve, coactin valves carried by the intermediate an outer sleeves, means rotatably connectin said valves and forming a means where y the same ma be adjusted to compensate for wear, a pin carried by one of the sleeves, one of the other sleeves being provided with a spiral slot receiving said pin whereby when one or the sleeves is rotated with relation to the other sleeve when the bailer is set, and a bushing threaded into the forward portion of one of the sleeves and constituting a means to hold one of the valves in position.

8. A bailer comprising a pair of valve members adapted for registration, interfittin sleeves supporting the valve members, an means carried b said sleeves for bringing said valve mem ers into registration.

9. A bailer comprising a pair of valve members adapted for registration, interfitting sleeves supporting said valve members, and means actuated by one sleeve for turning another sleeve and the valve supported thereby whereby the valves are brought into registration.

10. A bailer comprising slidably connected sleeves, a valve carried by one of said sleeves, a second valve adapted for registration with said first named valve, and means actuated by one of said sleeves for bringing said valves into re istration. v

A EXANDER BUYNTQN 

